Question:
An electron has magnetic quantum number ml = -3. What is its principal quantum number?
An electron has magnetic quantum number ml = -3. What is its principal quantum number?
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Allowed values:
l = 0,1,2,… (n-1)
Magnetic quantum number fixes the minimum n.
Updated On: Mar 19, 2026
- \(1\)
- \(2\)
- \(3\)
- 4
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The Correct Option is D
Solution and Explanation
Step 1: Magnetic quantum number ml varies from: -l to +l
Step 2: Given ml = -3 ⟹ l ≥ 3.
Step 3: Azimuthal quantum number l ranges from: 0 to (n-1)
Step 4: Minimum value of n for which l=3 is: n=4
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